1Overvoltage and undervoltage protector (OUPA) with automatic reclosing function is an intelligent protector that integrates overvoltage protector and undervoltage protector together. 2In the event of an overcapacity or undervoltage failure on a singlephase line, the product can be cut off and the connection can be automatically resumed for a period of time after the line capacity has restore to its normal state. 3The overvoltage and undervoltage values of the products can be set by you, and can be adjusted according to the actual local situation. 4Overvoltage protection value range of 230V300V (default: 270V). 5Undervoltage protection value range of 140V210V (default: 170V).Condition: 100% Brand New Item Type: Voltage Protection Device Material: ABS Model: DDSVPD263 Rated Voltage: 220V Frequency: 50/60Hz Optional Rated Current: 40A, 63A Overvoltage Protection: 230V300V (default: 270V) Undervoltage Protection: 140V210V (default 170V) Energy Consumption: 2W Installation: DIN rail 1 x Voltage Protection Device 1 x Manual